Isocoma drummondii

Isocoma drummondii, the Drummond's goldenbush,[2] is a North American plant species in the sunflower family. It has been found on both sides of the Río Grande, in Tamaulipas and in southern Texas.[3]

Isocoma drummondii
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Asterales
Family:	Asteraceae
Genus:	Isocoma
Species:	I. drummondii
Binomial name
Isocoma drummondii (Torr. & A.Gray) Greene 1894
Synonyms[1]
Synonymy Aster berlandieri Kuntze Bigelowia drummondii (Torr. & A.Gray) A.Gray Bigelovia drummondi (Torr. & A.Gray) A.Gray Chondrophora drummondii (A.Gray) A.Heller Haplopappus drummondii (Torr. & A.Gray) S.F.Blake Aplopappus drummondii (Torr. & A.Gray) S.F.Blake Isocoma megalantha Shinners Linosyris drummondii Torr. & A.Gray 1842

Isocoma drummondii is a completely hairless shrub up to 100 cm (40 inches) tall. The plant produces flower heads in clusters on the tips of branches, each head containing 22–34 disc flowers but no ray flowers.[3]

References

1. The Plant List Isocoma drummondii (Torr. & A.Gray) Greene
2. "Isocoma drummondii". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 7 August 2015.
3. Nesom, G.L. 1991. Taxonomy of Isocoma (Compositae: Astereae). Phytologia 70(2): 69–114 description of I. drummondii on pages 88–89, distribution map on page 74